1167099878 has 32 divisors (see below), whose sum is σ = 2133734400. Its totient is φ = 467362944.

The previous prime is 1167099859. The next prime is 1167099887. The reversal of 1167099878 is 8789907611.

It is a super-2 number, since 2×1167099878² = 2724244250455229768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15443 + ... + 50721.

It is an arithmetic number, because the mean of its divisors is an integer number (66679200).

Almost surely, 2^1167099878 is an apocalyptic number.

1167099878 is a deficient number, since it is larger than the sum of its proper divisors (966634522).

1167099878 is a wasteful number, since it uses less digits than its factorization.

1167099878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35444.

The product of its (nonzero) digits is 1524096, while the sum is 56.

The square root of 1167099878 is about 34162.8435291912. The cubic root of 1167099878 is about 1052.8568843687.

The spelling of 1167099878 in words is "one billion, one hundred sixty-seven million, ninety-nine thousand, eight hundred seventy-eight".